show block only when member is fan

i want to show or hide a block based on : if member is fan yes/no

how can i do that?

to be more clear...
if a member joins a group or becomes a fan then i want to show the groups timeline block (mod from AndrewP)
now is hides/shows the timeline post block only but i want the same happening to the timeline block.
I checked the code but i could not find it...

anyone???

Hello

I recommend you to contact with AndrewP and ask him about the exact code which is used in "post to timeline" block and should be added in the "view timeline" block.

i did but maybe he's on a holiday or busy with his work as he did not reply yet. Tried his email and left msg here...
I'll  give it some time. thanx anyways